I am so doing this. My jewellery is a mess, especially since the cats moved in. Hang your necklaces from shower curtain hangers on your towel rack | Offbeat Home
Towel rods + shower curtain hangers = easy peasy way to organize your necklaces.
Also on these boards
Ribbons to hang curtains.
Good idea! Hang two towel bars in your closet with S hooks for necklaces and shower curtain rings for scarves.